The effect of exposed aggregate concrete gradation on the texture characteristics and durability

Šernas, Ovidijus; Zofka, Adam; Vaitkus, Audrius; Gražulytė, Judita

doi:10.1016/j.conbuildmat.2020.119921

Cited by 11 publications

(5 citation statements)

References 24 publications

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“…In the first phase water and coarse emery (300/600 µm) were fed continuously onto the surfaces and in the second phase water and emery flour (<53 µm) were fed. A more detailed description of the slab polisher and examples of the results of the research can be found in the literature [ 9 , 54 ].…”

Section: Methodsmentioning

confidence: 99%

“…The EAC method is based on delayed cement hydration and the removal of unbound cement mortar with a mechanical brush or water under pressure. This exposes the coarse aggregate particles that protrude slightly from the top surface [ 8 , 9 , 10 ]. Concrete pavements with exposed aggregate are made in two layers, in the “wet on wet” system [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…Concrete pavements with exposed aggregate are made in two layers, in the “wet on wet” system [ 11 ]. The top layer should be made of concrete mix with a maximum grain size of 8 or 11 mm [ 8 , 9 ]. In the case of this type of texturing, it is important to use an aggregate with the appropriate resistance to polishing [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…In the case of this type of texturing, it is important to use an aggregate with the appropriate resistance to polishing [ 12 , 13 ]. In order to verify the correctness of the macrotexture, the criteria for the number of exposed coarse aggregate grains on an area of 25 cm 2 were established; the works were conducted mainly in Germany and Austria [ 8 , 9 , 12 , 14 , 15 ]. However, this method of evaluation is time-consuming.…”

Section: Introductionmentioning

confidence: 99%

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A Comparative Study on Skid Resistance of Concrete Pavements Differing in Texturing Technique

2021

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The paper presents a comparison of the skid resistance of concrete pavements textured with different techniques in the process of simulating phenomena occurring in actual road conditions. Tests were carried out on five different texturing methods for concrete pavements: burlap drag (BuD), brush drag (BrD), transverse tining (TT), longitudinal tining (LT) and exposed aggregate concrete (EAC). Changes in the skid resistance were recorded by measurements with a British pendulum tester and a circular texture meter before and during the simulation of the abrasion (1st phase of test) and polishing (2nd phase of test) of specimens using a slab polisher. The results of BPN (British pendulum number) and MPD (mean profile depth) allowed us to determine the influence of microtexture and macrotexture on skid resistance. Analysis of variance showed that the method of texturing concrete pavements has a significant influence on the mean BPN values as well as the MPD parameter at each stage of the test. In order to distinguish homogeneous groups in terms of BPN and MPD levels at the particular stages of the process, the Tukey’s HSD (honest significant difference) post-hoc test was performed. It was found that EAC obtained the most favorable results of all the tested pavement types. Due to the high value of the MPD coefficient after the test and the appropriate values of the friction coefficient, it was confirmed that the EAC pavement will be a durable solution due to the guarantee of skid resistance on high-speed roads during its service life.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Comparative Study on Skid Resistance of Concrete Pavements Differing in Texturing Technique

2021

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“…The requirements of SNI 03-1968-1990 (Indonesian Standard of Test Method for Sieve Analysis of Fine and Coarse Aggregate) [10]. Selecting the wrong gradation might lead to an insuf-ficient or excessive depth of the coarse aggregate exposure and their ravelling [11]. Figure 1 show the gradation of coarse and fine aggregates made according to standard specifications in Indonesia.…”

Section: Aggregate Gradationmentioning

confidence: 99%

Flexural Behavior of Normal and Lightweight Concrete Composite Beams

et al. 2021

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This paper presents an experimental study of the behavior of Normal Concrete Beams (NCB) and composite beams with lightweight foamed concrete (CB), reinforced with steel bar measuring 2 f 8 mm in the compressive section and 2 D 16 mm in the tensile section, shear steel bar f 8 mm. The sample consisted of two normal concrete beams (NCB) and two composite beams with lightweight foamed concrete (CB). The main variables in this study are the type of concrete, the type of steel bar and the flexural behavior. The beam samples were tested by two-point loading, failure mode and crack width were observed. The results showed that the flexural process of normal concrete blocks (NCB) and composite beams with lightweight foamed concrete (CB) was almost the same. There is no slip failure at the combined interface, the flexural capacity of the composite beam with lightweight foamed concrete can be calculated based on the statics analysis and plane-section assumptions. To calculate the ultimate capacity of a composite beam with lightweight foamed concrete is to convert a section consisting of more than one fc' to an equivalent section consisting of one fc'. Furthermore, it is validated by calculating the theoretical moment capacity and comparing the theoretical moment capacity of the experimental results. The results of the flexural test, composite beam with lightweight foamed concrete (CB) showed ductile deflection behavior, diagonal crack patterns, and low flexural capacity of the beam (NCB). Doi: 10.28991/cej-2021-03091673 Full Text: PDF

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Asphalt Pavement Texture Level and Distribution Uniformity Evaluation Using Three-Dimensional Method

Dong

Han

2022

Lecture Notes in Civil Engineering

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The effect of exposed aggregate concrete gradation on the texture characteristics and durability

Cited by 11 publications

References 24 publications

A Comparative Study on Skid Resistance of Concrete Pavements Differing in Texturing Technique

A Comparative Study on Skid Resistance of Concrete Pavements Differing in Texturing Technique

Flexural Behavior of Normal and Lightweight Concrete Composite Beams

Asphalt Pavement Texture Level and Distribution Uniformity Evaluation Using Three-Dimensional Method

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